The evaluated life event doesn't have the newly added contact

Please let me understand on the possibilities for the below scenario.

1. Employee reports the life event( eg: marriage is self reported.)
2. Employee navigates to before you enroll page to add the dependent.
3. After adding the dependent (relationship start date as of today), the employee is unable to find the dependent in the enrollment page. While trying to enroll the spouse in the plans, the spouse is not available.

Why is the dependent not visible in the enrollment window to make elections. Is it because the life event is already processed. Is there any way to update the dependent to the processed life events?